The Shaft Seal prevents water from seeping along the shaft anddraining out behind the impeller. A Swimming Pool Shaft seal isinexpensive but critical in preventing water from causing damage tothe motor. Replace your Pool Pump Shaft Seal whenever you replacethe motor, or your if pool pump is leaking down the back side ofthe seal plate, and onto the ground below.

This OzoneService Shaft Seal is designed to withstand the harsh envirounmentof Ozone generator or Chlorine generator use. We Highlyrecommend using an Ozone Service Shaft Seal if you are using a SaltChlorine generator.